Vitakraft Sunseed has launched a challenge for pet store retailers and Vitakraft Sunseed Facebook fans. The company will match any contribution (up to a collective donation of $5,000) that retailers and Facebook fans make to support the Pets in the Classroom program through Dec. 31. “Rebate grants reimburse participating teachers for their purchase of pets and pet supplies, so ultimately the dollars go back into the pet industry,” said Brent Weinmann, president and CEO of Vitakraft Sunseed.